Fix/remove special `manifest.serializeWireForNeo()` method

[spencercorwin]

In the Neo repo you'll see that they serialize and deserialize the manifest in an odd way. So I had to create special manifest methods called serializeWireBaseForNeo and serializeWireForNeo. And in BinaryWriter: writeVarStringWithoutVar to mitigate this problem. I think this is the wrong way for Neo to implement this. There should be another byte in the beginning to indicate the variable length!

[spencercorwin]

Make sure that we are serializing and deserializing the manifest correctly as well